Construction method of hyperboloid sawtooth building edge super high-rise curtain wall

Abstract

The application provides a hyperboloid serrated building edge super high-rise curtain wall construction method, and belongs to the technical field of building construction. The hyperboloid serrated building edge super high-rise curtain wall construction method comprises the following steps: lofting and drawing the ink line of the curved surface ring rail, using a steel tape to perform secondary rechecking after the lofting is completed; transporting the curtain wall plate to the site; installing the curtain wall embedded part on the building structure; erecting the curved surface ring rail by using the curtain wall embedded part; predicting the installation floor position of the curtain wall plate; performing point position measurement and line laying on the curtain wall plate; performing reverse construction on the point position measurement and line laying and quality rechecking of the curtain wall plate by using BIM technology and a three-dimensional laser scanner; hoisting the curtain wall plate on the hyperboloid ring rail; adjusting the horizontal, vertical and inclined angles of the curtain wall plate; and performing quality rechecking after the construction is completed. The application can solve the risk of falling after the glass curtain wall falls off and breaks, and improve the safety of the curtain wall.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a construction method for a hyperboloid sawtooth-shaped building edge ultra-high-rise curtain wall. Background Technology

[0002] Architecture is a general term for buildings and structures. It refers to the artificial environment created by people to meet the needs of social life, utilizing their material and technological means and applying certain scientific and aesthetic principles. Building facades are decorated to make them more aesthetically pleasing and provide better protection. Hyperbolic sawtooth-shaped building edges are frequently used by architects in architectural design.

[0003] Buildings with hyperboloid sawtooth-shaped edges often require the use of a large amount of glass curtain walls. After the existing glass curtain walls are installed and fixed with fasteners, the joints of the glass curtain walls are prone to delamination after long-term use, which can affect the normal use of the glass curtain walls. In addition, glass curtain walls are used outdoors for a long time, and when they are exposed to sunlight for a long time, they are prone to cracking and breaking, which poses a certain danger. Summary of the Invention

[0004] In view of this, the present invention provides a construction method for a super high-rise curtain wall with a hyperboloid sawtooth edge, which can effectively solve the risk of falling glass curtain walls after they fall off or break, and improve the safety of the curtain wall.

[0005] This invention is implemented as follows:

[0006] This invention provides a construction method for a hyperboloid sawtooth-shaped floor edge curtain wall of a super high-rise building, comprising the following methods:

[0007] S01: Use measurement software to measure, use a theodolite to verify the curved ring track drawing and the obtained measurement dimensions, lay out and mark the ink lines of the curved ring track, and use a steel tape measure to verify the layout a second time after the layout is completed.

[0008] S02: Transport the curtain wall panels to the site;

[0009] S03: Install curtain wall embedded parts on the building structure;

[0010] S04: Construct the curved circular track using the embedded parts of the curtain wall;

[0011] S05: Predict the floor location where the curtain wall panels will be installed;

[0012] S06: Perform point measurement and layout of the curtain wall panels, specifically including the measurement and layout of the axis and the derivation of the coordinate positioning of each curtain wall panel;

[0013] S07: Using BIM technology and a 3D laser scanner, reverse construction is carried out in the point measurement, layout and quality verification of the curtain wall panels to ensure the layout accuracy;

[0014] S08: The curtain wall panel is hoisted on the hyperboloid ring track, and a level and plumb line are used to track and position it to ensure the accuracy of the curtain wall panel positioning;

[0015] S09: Adjust the horizontal, vertical, and tilt angles of the curtain wall panels;

[0016] S10: Conduct a quality review after construction is completed.

[0017] The technical advantages of the hyperboloid sawtooth-shaped building edge super high-rise curtain wall construction method provided by this invention are as follows: This method can realize the construction of super high-rise curtain walls affected by the construction environment and the building's plan and facade shape, and has the characteristics of high stability, low material consumption, and fast construction speed; it can significantly improve the curtain wall hoisting speed; it improves the original construction process in terms of measurement and layout, installation of curtain wall panels, and verification and adjustment, reduces material consumption and labor use, lowers costs, and maximizes the accuracy of curtain wall installation; it uses BIM technology to simulate the entire curtain wall construction process with high precision, streamlines the construction process, and improves the installation quality.

[0018] Based on the above technical solution, the construction method of the hyperboloid sawtooth-shaped building edge super high-rise curtain wall of the present invention can be further improved as follows:

[0019] The curtain wall panel includes a frame and a glass sheet. The glass sheet is embedded in the frame. A pressure sensor capable of measuring the pressure exerted by the glass sheet on the lower frame is placed between the glass sheet and the lower frame of the frame. A curtain wall protection device is installed in the lower frame of the frame. The curtain wall protection device includes a first link, a second link, and a third link. One adjacent end of the first link and the second link is rotatably connected via a first pivot. The other ends of the first link and the second link are fastened together via a locking mechanism. A groove is formed on the side wall of the first link, and a sliding screw is installed in the groove. The sliding lead screw is slidably connected to an electric slider. One end of the third link is rotatably connected to the sliding lead screw via a second rotating shaft, and the other end of the third link is rotatably connected to a position at half the rotation radius of the second link via a third rotating shaft. The length of the third link is half the length of the first link. Each lower frame has two curtain wall protection devices, which are arranged opposite each other under the frame. A flexible, foldable protective film is connected between the second links of the two curtain wall protection devices. The electric slider, the locking mechanism, and the pressure sensor are electrically connected to the control center.

[0020] Furthermore, the locking mechanism includes a locking hook, a reverse locking hook, and an energized suction cup magnet. The locking hook is connected to the first connecting rod via a torsion spring. The energized suction cup magnet is located below the locking hook and on the first connecting rod. When energized, the energized suction cup magnet can attract the locking hook. The reverse locking hook is located on the second connecting rod and can engage with the locking hook. The energized suction cup magnet is electrically connected to the control center.

[0021] Furthermore, a quick-release spring is connected between the electric slider and the end of the first connecting rod near the first rotating shaft.

[0022] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a locking mechanism and a quick-release spring, the second link can be quickly lifted on the first link to quickly open the protective film. This allows for a rapid response to the sudden breakage of the previous glass plate, avoiding the situation where the protective film is not opened in time and thus missing the connection.

[0023] Furthermore, after the second link of the two curtain wall protection devices is opened on the first link, the protective film on the second link has an upward tilting angle.

[0024] Furthermore, the third link is an electrically telescopic rod, which is electrically connected to the control center, and the protective film is elastic.

[0025] The beneficial effects of adopting the above-mentioned improvement scheme are: by making the protective film cloth have an upward tilt angle after it is opened, the sealing of the protective film cloth is more stable and less likely to slip off.

[0026] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting the third link as an electric telescopic rod, the folding angle of the second link on the first link is not limited by the length of the third link itself, and the included angle between the first link and the second link can be an obtuse angle, thereby increasing the opening area of ​​the protective film and improving the holding capacity of the protective film.

[0027] In S04, the curved ring track includes a support arm and a ring track. The support arm is attached to the building structure through the curtain wall embedded part. The ring track is erected on the support arm. The support arms are connected by steel cables through rail steel ear plates. The steel cables have electric hoists for providing power for horizontal material transportation. The support arm is 4500mm long, and the outermost end of the support arm is 2000mm away from the outer edge of the building structure. The distance from the outermost center line of the ring track to the outer edge of the building structure is 1900mm, and the distance from the innermost center line of the ring track to the outer edge of the building structure is 900mm.

[0028] Specifically, in step S08, BIM technology and a 3D laser scanner are used to perform reverse construction in the point measurement, layout, and quality verification of the curtain wall panels to ensure layout accuracy. This includes the following steps:

[0029] Step 1: Place the positioning lines for the platform base. The positioning lines for the platform base are divided into positioning for the straight sawtooth section and positioning for both sides of the external corner section. The positioning for both sides of the external corner section is based on the dimensional relationship between the internal control line, the unit body dividing line and the platform base. Two control points are set for the position of each platform base. The center line of the platform base is used to draw points and lines at the front and back points respectively. The line connecting the two points is extended to the edge line of the building structure. A perpendicular line is drawn at the front point using a right angle ruler to control the positioning lines of the platform base.

[0030] Step 2: Locate the steel connectors at the bottom of the floor slab. Measure the control line at the bottom of the floor slab to the floor slab of the next floor. Then, use a high-precision level to draw points and lines at the bottom of the floor slab for positioning. Considering the staggered floor features of the curtain wall system, place the control positioning line for the steel connectors at the bottom of the beams on the top of the floor slab of the next floor to ensure the installation accuracy of the steel connectors.

[0031] Step 3: Install the platform brackets on the top of the floor slab. For the external corner platform brackets, use three measuring tapes to position and install them in a triangular closed manner according to the positioning dimensions on the floor plan.

[0032] Step 4: Using BIM technology and 3D laser scanners, reverse construction is carried out in the curtain wall measurement and layout and quality verification stages. This provides 3D point cloud data of the floor slab surface and uses laser ranging to record the 3D coordinates, reflectivity and texture information of a large number of dense points on the floor slab. This allows for the rapid reconstruction of various drawing data such as 3D models, thereby ensuring the accuracy of the layout.

[0033] In step S09, the curtain wall panel is suspended on the hyperboloidal ring track, and the hanging points for the curtain wall panel installation conform to the following principles:

[0034] Firstly, the connection strength of the hanging point should meet the force transmission requirements.

[0035] Secondly, the hanging point can be adjusted in three dimensions. After adjustment, one point is fixed relative to the main building structure, while the other point can slide horizontally. This allows for accurate positioning and also absorbs deformation caused by structural and temperature factors through sliding expansion and contraction.

[0036] Thirdly: The adjustment range of the hanging point should be large enough, not less than 20mm in each direction;

[0037] Fourth point: The hanging depth of the hanging point shall not be less than 15mm;

[0038] Fifthly: The hanging points can effectively absorb deformation during normal operation and do not generate noise.

[0039] Furthermore, the curtain wall panels have airtight lines and watertight lines during installation, and there is an equal pressure cavity between the airtight lines and the watertight lines. The equal pressure cavities on at least three sides of the curtain wall panels are interconnected. The curtain wall panels of the horizontal sliding structure are sealed horizontally by applying glue. The airtight lines and the watertight lines are not collinear. The watertight lines have drainage holes, and the drainage holes are sealed with sponge to prevent rainwater backflow.

[0040] Compared with existing technologies, the beneficial effects of the hyperboloid sawtooth-shaped building edge super high-rise curtain wall construction method provided by this invention are as follows: This method can realize the construction of super high-rise curtain walls affected by the construction environment and the building's plan and facade shape, and has the characteristics of high stability, low material consumption, and fast construction speed; it can significantly improve the curtain wall hoisting speed; it improves the original construction process in terms of measurement and layout, installation of curtain wall panels, and verification and adjustment, reduces material consumption and labor use, lowers costs, and maximizes the accuracy of curtain wall installation; it uses BIM technology to simulate the entire curtain wall construction process with high precision, streamlines the construction process, and improves installation quality; by installing pressure sensors and curtain wall protection devices on the curtain wall panels, when the pressure sensor detects that the pressure suddenly falls below the threshold, it indicates that the glass panel has broken. The control center controls the next curtain wall panel to open the curtain wall protection device to catch the broken glass panel, avoiding property damage or even personal injury caused by the broken glass panel falling from a height. The unified control of the opening of the curtain wall protection device can also protect the glass panel in hail weather. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This invention provides a flowchart of a construction method for a hyperboloid sawtooth-shaped building edge ultra-high-rise curtain wall;

[0043] Figure 2 This invention provides a schematic diagram of the curtain wall panels in a construction method for a hyperboloid sawtooth-shaped floor edge ultra-high-rise curtain wall.

[0044] Figure 3 This invention provides a schematic diagram of the first embodiment of the curtain wall protection device in the construction method of a hyperboloid sawtooth-shaped building edge super high-rise curtain wall;

[0045] Figure 4 for Figure 3 Enlarged view of section A;

[0046] Figure 5 for Figure 3 Enlarged view of section B;

[0047] Figure 6 This invention provides an electrical connection diagram for the first embodiment of the curtain wall protection device in the construction method of a hyperboloid sawtooth-shaped building edge super high-rise curtain wall;

[0048] Figure 7 This invention provides a schematic diagram of a second embodiment of a curtain wall protection device in a construction method for a hyperboloid sawtooth-shaped building edge ultra-high-rise curtain wall;

[0049] Figure 8 This invention provides an electrical connection diagram for a second embodiment of the curtain wall protection device in a construction method for a hyperboloid sawtooth-shaped high-rise curtain wall.

[0050] The attached diagram lists the components represented by each number as follows:

[0051] 01. First connecting rod; 011. Sliding lead screw; 012. Electric slider; 02. Second connecting rod; 03. Third connecting rod; 031. Second rotating shaft; 032. Third rotating shaft; 04. First rotating shaft; 05. Protective film; 061. Locking hook; 0612. Torsion spring; 062. Anti-locking hook; 063. Powered suction cup magnet; 07. Control center; 08. Quick-release spring; 09. Pressure sensor. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0055] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0057] like Figure 1 The image shown is a first embodiment of a construction method for a hyperboloid sawtooth-shaped floor edge super high-rise curtain wall provided by the present invention. In this embodiment, the following methods are included:

[0058] S01: Use measurement software to measure, use a theodolite to verify the curved ring track drawing and the obtained measurement dimensions, lay out and mark the ink lines of the curved ring track, and use a steel tape measure to verify the layout a second time after the layout is completed.

[0059] S02: Transport the curtain wall panels to the site;

[0060] S03: Install curtain wall embedded parts on the building structure;

[0061] S04: Construct a curved circular track using embedded parts in the curtain wall;

[0062] S05: Predict the floor location for curtain wall panel installation;

[0063] S06: Perform point measurement and layout for the curtain wall panels, specifically including the measurement and layout of the axis and the export of the coordinate positioning of each curtain wall panel;

[0064] S07: Using BIM technology and 3D laser scanners, reverse construction is carried out in the curtain wall panel point measurement and layout and quality verification process to ensure layout accuracy;

[0065] S08: Install curtain wall panels on a hyperboloid ring track, and use a level and plumb line to track and position them to ensure accurate positioning.

[0066] S09: Adjust the horizontal, vertical, and tilt angles of the curtain wall panels;

[0067] S10: Conduct a quality review after construction is completed.

[0068] In S10, the adjustment of the horizontal, vertical, and tilt angles of the curtain wall panels resulted in the curtain wall panels conforming to the technical parameters of the curtain wall, including:

[0069] The spacing between embedded parts in the curtain wall is ≤3.5m;

[0070] Curtain wall slope: 1:0.45;

[0071] The allowable error for flatness after splicing curtain wall panels is ±15mm.

[0072] The curtain wall embedded component mentioned in S03 uses Chinese Utility Model Patent Publication No. CN207296102U (Application No.: CN201721093410.0). This utility model relates to a combined plate-type channel curtain wall embedded component, including an embedded plate embedded in the building structure, with the front of the embedded plate flush with the surface of the building structure, and slots formed on the embedded plate; an anchor rod fixed to the back of the embedded plate and anchored inside the building structure; an installation structure fixed to the back of the embedded plate at the position corresponding to the slots, the installation structure having a limiting groove communicating with the slots, and a protrusion at the top of the limiting groove corresponding to the installation structure; and a bolt with a bolt head, the bolt head being placed in the limiting groove of the installation structure through the slot, and having a recess adapted to the protrusion, the bolt being locked in the installation structure by the protrusion engaging with the recess. This utility model combines the advantages of plate-type embedded components and channel-type embedded components, ensuring both structural stability and convenient construction. The curtain wall embedded parts adopt an innovative embedded part design, which increases the stress on the embedded parts and improves the stability of the curtain wall while ensuring the same amount of material input. It also allows for a certain margin of error in the installation of the curtain wall, which facilitates the installation of unit panels. It can be freely adjusted within a certain range in the vertical direction to compensate for the vertical errors caused by the processing, measurement and layout, and installation of the panels.

[0073] S02 specifies the transportation of curtain wall panels to the site, including: assigning uniform numbers to the curtain wall panels according to the installation sequence and shipping them in that order to ensure orderly installation of the unitized structures. For lower floors (below 18 floors), double-curved circular tracks are used for direct mounting; for higher floors (above 18 floors), cantilever cranes are used for vertical transportation of the curtain wall panels, increasing transportation efficiency and ensuring construction safety. The use of double-curved circular tracks for hoisting unitized panels improves installation efficiency and ensures construction quality. The tower crown is vertically transported using rooftop tower cranes and window cleaning machines. Tower cranes have high structural strength, good wind resistance, and are less affected by weather conditions, allowing for the transportation of curtain wall materials such as panels and profiles to the roof.

[0074] Because the edges of the outer floor slabs are sawtooth-shaped, the edges of the curtain wall are parallel to the outer edges of the sawtooth-shaped floor slabs and are also sawtooth-shaped. Due to the unavoidable errors in the fabrication and installation of the curtain wall panels, and the unique shape of the curtain wall, even slight deviations in the plane can prevent two units from fitting together and thus prevent installation. Furthermore, the tower facade has a complex shape and staggered upper and lower floor slabs, so there is also a staggered arrangement between the upper and lower curtain walls. If there is a deviation in the vertical direction, it may prevent the upper or lower unit from being installed accurately. Therefore, S10 mentions adjusting the horizontal, vertical, and tilt angles of the curtain wall panels.

[0075] To solve this problem, curtain wall embedded parts are used. If the lateral gap is large, the curtain wall and adapter can be moved left and right within the groove of the embedded parts. Once the position is suitable, the bolts are tightened to control the horizontal position. The curtain wall adapter, which connects the embedded parts to the T-bolts, has a long groove in the vertical direction. The longitudinal groove of the adapter allows for adjustment of the front-to-back direction of the unit panels. A free-hinged hook type connection is used, allowing for rotational adjustment of the panels by rotating the hangers and hooks on the unit panels. During installation, the adapter supports can be continuously adjusted to ensure that the adapter supports on each floor are within the allowable installation deviation range before fixing. This ensures the flatness of the curtain wall panels after installation, guaranteeing the overall stability of the curtain wall.

[0076] The method combines double-ring rails with cantilever cranes, and the connection between curtain wall panels and embedded parts is designed to be adjustable. Compared with traditional installation processes, this saves 1 hour of labor for installing a single curtain wall panel, and another hour for subsequent verification; 200 hours of labor per floor; 0.5 hours of elevator and tower crane usage time; and reduces steel consumption by 0.5 kg × 100 pieces × 4.9 yuan / kg = 245 yuan. It also reduces labor costs by (100 hours / person + 200 hours / person) ÷ 8 hours / day × 200 yuan / man-day = 7,500 yuan; and reduces elevator and tower crane rental costs by 0.5 hours × 30 days ÷ 40,000 yuan / month = 37,500 yuan.

[0077] BIM, or Building Information Modeling, is a digital toolset that makes architectural design, construction, and management processes more efficient, accurate, and integrated. It's not just software or technology, but a complete process involving every aspect of a building project. Building Information Modeling is typically a 3D design tool used for the planning, design, construction, and management of building and infrastructure projects. BIM is generally a 3D-centric tool that creates accurate building models. It provides designers, engineers, and architects with a more realistic and comprehensive perspective, while also helping to integrate various building materials and components to better meet the needs of the construction industry.

[0078] like Figure 2-6As shown, in the above technical solution, the curtain wall panel includes a frame and a glass panel. The glass panel is embedded in the frame. A pressure sensor 09 capable of measuring the pressure exerted by the glass panel on the lower frame is placed between the glass panel and the lower frame of the frame. A curtain wall protection device is installed in the lower frame of the frame. The curtain wall protection device includes a first connecting rod 01, a second connecting rod 02, and a third connecting rod 03. One adjacent end of the first connecting rod 01 and the second connecting rod 02 is rotatably connected via a first rotating shaft 04. The other ends of the first connecting rod 01 and the second connecting rod 02 are fastened together via a locking mechanism. A groove is provided on the side wall of the first connecting rod 01, and a sliding screw 011 is provided in the groove. The sliding screw 011 is slidably connected to the electric slider 012. One end of the third link 03 is rotatably connected to the sliding screw 011 via the second rotating shaft 031, and the other end of the third link 03 is rotatably connected to the position at half the rotation radius of the second link 02 via the third rotating shaft 032. The length of the third link 03 is half the length of the first link 01. Each lower frame has two curtain wall protection devices, which are arranged opposite each other under the frame. A flexible and foldable protective film 05 is connected between the second links 02 of the two curtain wall protection devices. The electric slider 012, the locking mechanism, the pressure sensor 09 are electrically connected to the control center 07.

[0079] Furthermore, in the above technical solution, the locking mechanism includes a locking hook 061, a reverse locking hook 062, and an energized suction cup magnet 063. The locking hook 061 is connected to the first connecting rod 01 via a torsion spring 0612. The energized suction cup magnet 063 is located below the locking hook 061 and on the first connecting rod 01. When energized, the energized suction cup magnet 063 can attract the locking hook 061. The reverse locking hook 062 is located on the second connecting rod 02 and can engage with the locking hook 061. The energized suction cup magnet 063 is electrically connected to the control center 07.

[0080] Furthermore, in the above technical solution, a quick-release spring 08 is connected between the electric slider 012 and the end of the first connecting rod 01 near the first rotating shaft 04.

[0081] In operation, the minimum pressure threshold sensed by pressure sensor 09 is first set in control center 07. This threshold is less than the weight of the glass panel. Pressure sensor 09 on a curtain wall panel sends the pressure value to control center 07. When the inner panel of the curtain wall panel suddenly breaks and begins to fall, the pressure value sensed by pressure sensor 09 is less than the minimum pressure threshold. Control center 07 then activates the energized suction cup magnet 063 of the next curtain wall panel. The energized suction cup magnet 063 becomes magnetic and attracts the locking hook 061 downwards. The locking hook 061 overcomes the elasticity of the torsion spring 0612 and moves downwards. Rotate, the anti-lock hook 062 disengages from the locking hook 061, and the second link 02 can rotate around the first pivot 04 on the first link 01; the spring 08 is quickly deployed and the elastic force of the contraction pulls one end of the third link 03 to slide towards the first pivot 04. At the same time, the control center 07 controls the electric slider 012 to move quickly on the sliding screw 011. The third link 03 supports the second link 02 to rotate around the first pivot 04 on the first link 01. The second link 02 opens on the first link 01, and the second links 02 of the two curtain wall protection devices open the protective film 05 between them. The opened protective film 05 catches the falling broken glass.

[0082] After the curtain wall protection device finishes its protection work (after the broken glass on the protective film 05 has been cleaned), the control center 07 sends a retraction signal to the electric slider 012. The electric slider 012 slides along the sliding screw 011 toward the end of the first connecting rod 01 near the locking hook 061. The electric slider 012 pulls the rapidly unfolding spring 08 to extend. The movement of the electric slider 012 drives the third connecting rod 03 to pull the second connecting rod 02 toward the first connecting rod 01 to close until the first connecting rod 01 and the second connecting rod 02 overlap. The anti-locking hook 062 engages with the locking hook 061, fixing the first connecting rod 01 and the second connecting rod 02 together. At this time, the second connecting rod 02 of the two curtain wall protection devices also folds and retracts the protective film 05 between them.

[0083] Furthermore, in the above technical solution, after the second link 02 of the two curtain wall protection devices is opened on the first link 01, the protective film 05 on the second link 02 has an upward tilting angle.

[0084] The upward tilt angle is the angle between the protective film 05 and the curtain wall module, and the angle is between 75° and 60°.

[0085] like Figure 7-8 The image shows a second embodiment of a construction method for a hyperboloid sawtooth-shaped building edge ultra-high-rise curtain wall provided by the present invention. In this embodiment, the third link 03 is an electric telescopic rod, which is electrically connected to the control center 07, and the protective film 05 is elastic.

[0086] In the aforementioned technical solution, the curved ring track in S04 includes a support arm and a ring track. The support arm is attached to the building structure through curtain wall embedded parts, and the ring track is erected on the support arm. Steel cables are connected between the support arms through rail steel ear plates. Electric hoists are mounted on the steel cables to provide power for horizontal material transportation. The support arm is 4500mm long, and the outermost end of the support arm is 2000mm away from the outer edge of the building structure. The distance from the outermost center line of the ring track to the outer edge of the building structure is 1900mm, and the distance from the innermost center line of the ring track to the outer edge of the building structure is 900mm.

[0087] The outrigger and circular track are constructed from 18a Q235B steel, suspended by a 3T chain electric hoist with a maximum lifting capacity of 2T. The rear end of the outrigger is tightly connected to the curtain wall embedded parts using M16T bolts. Construction above the 18th floor will proceed according to the general contractor's schedule and construction plan.

[0088] The unit body of the segment network is hoisted onto the surface ring rail. During the installation of the ring rail, the grooved curtain wall embedded parts are pre-embedded on the corresponding floor according to the spacing of the ring rail support arms.

[0089] In the aforementioned technical solution, S08 utilizes BIM technology and a 3D laser scanner to perform reverse construction in the point measurement, layout, and quality verification stages of the curtain wall panels, ensuring layout accuracy. Specifically, this includes the following steps:

[0090] Step 1: Place the positioning lines for the platform base. The positioning lines for the platform base are divided into positioning for the straight sawtooth section and positioning for both sides of the external corner. The positioning for both sides of the external corner is based on the dimensional relationship between the internal control line, the unit body dividing line and the platform base. Two control points are set for the position of each platform base. The center line of the platform base is used to draw points and lines at the front and back points respectively. The line connecting the two points is extended to the edge line of the building structure. A perpendicular line is drawn at the front point using a right angle ruler to control the positioning lines of the platform base.

[0091] Step 2: Locate the steel connectors at the bottom of the floor slab. Measure the control line at the bottom of the floor slab to the floor slab of the next floor. Then, use a high-precision level to draw points and lines at the bottom of the floor slab for positioning. Considering the staggered floor features of the curtain wall system, place the control positioning line for the steel connectors at the bottom of the beams on the top of the floor slab of the next floor to ensure the installation accuracy of the steel connectors.

[0092] Step 3: Install the platform brackets on the top of the floor slab. For the external corner platform brackets, use three measuring tapes to position and install them in a triangular closed shape according to the positioning dimensions on the floor plan.

[0093] Step 4: Using BIM technology and 3D laser scanners, reverse construction is carried out in the curtain wall measurement and layout and quality verification stages. This provides 3D point cloud data of the floor slab surface and uses laser ranging to record the 3D coordinates, reflectivity and texture information of a large number of dense points on the floor slab. This allows for the rapid reconstruction of various drawing data such as 3D models, thereby ensuring the accuracy of the layout.

[0094] In the aforementioned technical solution, in S09, the curtain wall panels are suspended on the hyperboloidal ring track, and the hanging points for the installation of the curtain wall panels conform to the following principles:

[0095] First, the connection strength of the hanging point should meet the force transmission requirements;

[0096] Secondly, the hanging point can be adjusted in three dimensions. After adjustment, one point can be fixed relative to the main building structure, while the other point can slide horizontally. This allows for accurate positioning and also absorbs deformation caused by structural and temperature factors through sliding expansion and contraction.

[0097] Third point: The adjustment range of the hanging point should be large enough, not less than 20mm in each direction;

[0098] Fourth point: The hanging depth of the hanging point shall not be less than 15mm;

[0099] Fifthly: The hanging points can effectively absorb deformation during normal operation and do not generate noise.

[0100] Unitized curtain wall mounting points are the foundation for force transmission in curtain wall structures. Curtain wall mounting points typically suffer from three design flaws: (1) Poor strength design, especially in terms of resistance to negative wind pressure. Experiments have shown that some mounting components break under negative wind pressure, failing to meet load-bearing requirements. (2) All mounting points are slidable, lacking lateral positioning for the entire unit. (3) Insufficient mounting depth, posing a risk of displacement. Therefore, it is necessary to meet the above principles to ensure the quality of the mounting points.

[0101] Furthermore, in the above technical solution, the curtain wall panels have airtight lines and watertight lines during installation, and there is an equal pressure cavity between the airtight lines and the watertight lines. The equal pressure cavities on at least three sides of the curtain wall panels are connected. For the horizontally sliding structure of the curtain wall panels, the curtain wall panels are sealed horizontally by applying glue. The airtight lines and watertight lines are not collinear. The watertight lines have drainage holes, and the drainage holes are sealed with sponge to prevent rainwater backflow.

[0102] The airtightness and watertightness design of the curtain wall panels references the rain curtain principle. The rain curtain principle, proposed by the American Aluminum Association (AAMA), is a theory that addresses how to prevent rainwater seepage in building curtain walls during the design process. It's a scientific method for eliminating leakage. The rain curtain principle is a design principle that explains how rainwater penetration into this "curtain" is prevented. In its application, the key factor is the presence of cavities within the joints, ensuring that the pressure on the inner side of the outer surface remains equal to the outdoor air pressure throughout, thus maintaining an isobaric state on both sides of the outer surface. The "outer surface" mentioned here refers to the "rain curtain." The "rain curtain" refers only to the portion of the wall or wall element's outer skin or surface exposed to external climatic factors. Therefore, the application of the "rain curtain principle" is necessary for achieving pressure balance design; conversely, a pressure balance design relies on this principle.

[0103] Pressure balance is achieved by intentionally keeping the opening open, allowing airflow between the cavity and the outside, thus achieving pressure equilibrium. This effect is created by the cavity behind the outer wall, which must be connected to the outside to achieve the above purpose. Gusts caused by the randomness of wind also need to be balanced on both sides of the outer wall.

[0104] A rain curtain is the exposed surface of a building or the surface of its curtain wall. Reasonable measures are taken to prevent rainwater from entering. "Isobaric design" is a supplement to the "rain curtain principle" and achieves the purpose of preventing rainwater leakage through pressure balance.

[0105] The airtight line is the last line of defense. If it is broken, it will cause leakage. Therefore, if the airtight lines of the horizontal and vertical profiles of the unit are not coplanar, there will be permanent holes, which will be a hidden danger of water and air leakage.

[0106] Curtain wall panels typically have interconnected pressure cavities on all four sides, with at least three sides being interconnected. Failure to form pressure cavities at the sealing edges will result in: (1) the profile ends will not be sealed. (2) the structural force transmission will be affected. Without matching male and female materials, the total cross-section of the profile will be reduced, and it will be impossible to insert and transmit force.

[0107] Curtain wall panels using an arc-shaped interlocking method can well meet the requirements of building facades, but poor design may cause leaks. Single-strip interlocking is more common, but the sealing effect is slightly worse; double-strip interlocking should be used whenever possible.

[0108] Among them, the 063 energized chuck magnet can be the DS-ET3425 chuck electromagnet produced by Dongguan Desheng Electromagnetic Technology Co., Ltd.; the control center 07 can be the HGM6120N self-starting controller produced by Fuzhou Yingling Electronic Technology Co., Ltd.; the electric slider 012 can be the FUYU brand FSK30J trapezoidal lead screw slide table precision miniature stepper motor linear guide; the third link 03 can be the MT-24V-24S-550N-50 electric cylinder electric push rod of Changzhou Bolin Electronics Co., Ltd.; and the pressure sensor 09 can be the UNIGREAT-FSR-007 pressure sensor of Shenzhen Jiayushun Technology Co., Ltd.

[0109] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A construction method for a hyperboloid sawtooth-shaped building edge curtain wall of a super high-rise building, characterized in that, Including the following methods: S01: Use measurement software to measure, use a theodolite to verify the hyperboloid ring track drawing and the obtained measurement dimensions, lay out and mark the ink lines of the hyperboloid ring track, and use a steel tape measure to verify the layout a second time after the layout is completed. S02: Transport the curtain wall panels to the site; S03: Install curtain wall embedded parts on the building structure; S04: Construct the hyperboloid ring track using the curtain wall embedded parts; S05: Predict the floor location where the curtain wall panels will be installed; S06: Perform point measurement and layout of the curtain wall panels, specifically including the measurement and layout of the axis and the derivation of the coordinate positioning of each curtain wall panel; S07: Using BIM technology and a 3D laser scanner, point measurement and layout and quality verification are carried out on the curtain wall panels. The reverse construction method is adopted to ensure the accuracy of the layout. S08: The curtain wall panel is hoisted on the hyperboloid ring track, and a level and plumb line are used to track and position it to ensure the accuracy of the curtain wall panel positioning; S09: Adjust the horizontal, vertical, and tilt angles of the curtain wall panels; S10: Conduct a quality check after construction is completed; The curtain wall panel includes a frame and a glass panel. The glass panel is embedded in the frame. A pressure sensor (09) capable of measuring the pressure exerted by the glass panel on the lower frame is placed between the glass panel and the lower frame of the frame. A curtain wall protection device is installed in the lower frame of the frame. The curtain wall protection device includes a first connecting rod (01), a second connecting rod (02), and a third connecting rod (03). One adjacent end of the first connecting rod (01) and the second connecting rod (02) is rotatably connected by a first rotating shaft (04). The other ends of the first connecting rod (01) and the second connecting rod (02) are fastened together by a locking mechanism. A groove is provided on the side wall of the first connecting rod (01), and a sliding screw (011) is provided in the groove. An electric slider (012) is slidably connected. One end of the third link (03) is rotatably connected to the sliding screw (011) via the second rotating shaft (031). The other end of the third link (03) is rotatably connected to the position at half the rotation radius of the second link (02) via the third rotating shaft (032). The length of the third link (03) is half the length of the first link (01). Each of the lower frames has two curtain wall protection devices. The two curtain wall protection devices are arranged opposite each other under the frame. A flexible and foldable protective film (05) is connected between the second links (02) of the two curtain wall protection devices. The electric slider (012), the locking mechanism, the pressure sensor (09) are electrically connected to the control center (07).

2. The construction method for a hyperboloid sawtooth-shaped building edge super high-rise curtain wall according to claim 1, characterized in that, The locking mechanism includes a locking hook (061), a reverse locking hook (062), and an energized suction cup magnet (063). The locking hook (061) is connected to the first connecting rod (01) via a torsion spring (0612). The energized suction cup magnet (063) is located on the first connecting rod (01) and below the locking hook (061). When energized, the energized suction cup magnet (063) can attract the locking hook (061). The reverse locking hook (062) is located on the second connecting rod (02) and can engage with the locking hook (061). The energized suction cup magnet (063) is electrically connected to the control center (07).

3. The construction method for a hyperboloid sawtooth-shaped building edge super high-rise curtain wall according to claim 2, characterized in that, A quick-release spring (08) is connected between the electric slider (012) and the end of the first connecting rod (01) near the first rotating shaft (04).

4. The construction method for a hyperboloid sawtooth-shaped building edge super high-rise curtain wall according to claim 3, characterized in that, After the second link (02) of the two curtain wall protection devices is opened on the first link (01), the protective film (05) on the second link (02) has an upward tilt angle.

5. The construction method for a hyperboloid sawtooth-shaped building edge super high-rise curtain wall according to claim 3, characterized in that, The third link (03) is an electric telescopic rod, and the third link (03) is electrically connected to the control center (07). The protective film (05) is elastic.

6. The construction method for a hyperboloid sawtooth-shaped building edge curtain wall of a super high-rise building according to claim 1, characterized in that, The hyperboloid ring track in S04 includes a support arm and a ring track. The support arm is attached to the building structure through the curtain wall embedded part. The ring track is erected on the support arm. The support arms are connected by steel cables through rail steel lugs. The steel cables have electric hoists for providing power for horizontal material transportation. The support arm is 4500mm long, and the outermost end of the support arm is 2000mm away from the outer edge of the building structure. The distance from the outermost center line of the ring track to the outer edge of the building structure is 1900mm, and the distance from the innermost center line of the ring track to the outer edge of the building structure is 900mm.

7. The construction method for a hyperboloid sawtooth-shaped building edge super high-rise curtain wall according to claim 1, characterized in that, In step S07, BIM technology and a 3D laser scanner are used to perform reverse construction in the point measurement, layout, and quality verification of the curtain wall panels to ensure layout accuracy. Specifically, this includes the following steps: Step 1: Place the positioning lines for the platform base. The positioning lines for the platform base are divided into positioning for the straight sawtooth section and positioning for both sides of the external corner section. The positioning for both sides of the external corner section is based on the dimensional relationship between the internal control line, the unit body dividing line and the platform base. Two control points are set for the position of each platform base. The center line of the platform base is used to draw points and lines at the front and back points respectively. The line connecting the two points is extended to the edge line of the building structure. A perpendicular line is drawn at the front point using a right angle ruler to control the positioning lines of the platform base. Step 2: Locate the steel connectors at the bottom of the floor slab. Measure the control line at the bottom of the floor slab to the floor slab of the next floor. Then, use a high-precision level to draw points and lines at the bottom of the floor slab for positioning. Considering the staggered floor features of the curtain wall system, place the control positioning line for the steel connectors at the bottom of the beams on the top of the floor slab of the next floor to ensure the installation accuracy of the steel connectors. Step 3: Install the platform brackets on the top of the floor slab. For the external corner platform brackets, use three measuring tapes to position and install them in a triangular closed manner according to the positioning dimensions on the floor plan. Step 4: Using BIM technology and 3D laser scanners, reverse construction is carried out in the curtain wall measurement and layout and quality verification stages. The 3D laser scanner provides 3D point cloud data of the floor slab surface and uses laser ranging to record the 3D coordinates, reflectivity and texture information of a large number of dense points on the floor slab, so as to quickly reconstruct various drawing data of the 3D model and thus ensure the accuracy of the layout.

8. The construction method for a hyperboloid sawtooth-shaped building edge super high-rise curtain wall according to claim 1, characterized in that, In step S08, the curtain wall panel is suspended on the hyperboloid ring track, and the hanging points for the curtain wall panel installation conform to the following principles: Firstly, the connection strength of the hanging point should meet the force transmission requirements. Secondly, the hanging point can be adjusted in three dimensions. After adjustment, one point is fixed relative to the main building structure, while the other point can slide horizontally. This allows for accurate positioning and also absorbs deformation caused by structural and temperature factors through sliding expansion and contraction. Thirdly: The adjustment range of the hanging point should be large enough, not less than 20mm in each direction; Fourth point: The hanging depth of the hanging point shall not be less than 15mm; Fifthly: The hanging points can effectively absorb deformation during normal operation and do not generate noise.

9. A construction method for a hyperboloid sawtooth-shaped building edge super high-rise curtain wall according to claim 8, characterized in that, The curtain wall panels are connected by airtight and watertight lines during installation, and there is an equal pressure cavity between the airtight and watertight lines. The equal pressure cavity on at least three sides of the curtain wall panel is connected. The curtain wall panels of the horizontal sliding structure are sealed horizontally by applying glue. The airtight and watertight lines are not collinear. The watertight lines have drainage holes, which are sealed with sponge to prevent rainwater backflow.

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